Perform the indicated operation. Write the answer in scientific notation.(25 × 106) ÷ ( 5 × 102)
A. 10 × 104
B. 5 × 108
C. 5 × 104
D. 10 × 108
Answer: C
Mathematics
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Solve the problem.You find a 2-pound nugget that is 50% gold. What is its purity in karats?
A. 50 karats B. 4.8 karats C. 24 karats D. 12 karats
Mathematics
Solve. Round to the nearest hundredth, if necessary.According to Ohm's law, the electric current I, in amperes, in a circuit varies directly as the voltage V. When 17 volts are applied, the current is 4 amperes. What is the current when 21 volts are applied?
A. 4.94 amperes B. 42 amperes C. 4.25 amperes D. 89.25 amperes
Mathematics
Evaluate the cylindrical coordinate integral.
A. 
B. 
C. 
D. 
Mathematics
Find the product. Write the product in rectangular form, using exact values.[8(cos 240° + i sin 240°)] [6(cos 330° + i sin 330°)]
A. 24i
B. -12 + 12
i
C. 24
D. -24
- 24i
Mathematics